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1223300140 = 22561165007
BaseRepresentation
bin100100011101010…
…0001010000101100
310011020212002022121
41020322201100230
510001131101030
6321215322324
742212610466
oct11072412054
93136762277
101223300140
11578580557
122a18203a4
13166591a4a
14b8677136
15725de47a
hex48ea142c

1223300140 has 12 divisors (see below), whose sum is σ = 2568930336. Its totient is φ = 489320048.

The previous prime is 1223300131. The next prime is 1223300153. The reversal of 1223300140 is 410033221.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30582484 + ... + 30582523.

It is an arithmetic number, because the mean of its divisors is an integer number (214077528).

Almost surely, 21223300140 is an apocalyptic number.

1223300140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223300140 is an abundant number, since it is smaller than the sum of its proper divisors (1345630196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1223300140 is a wasteful number, since it uses less digits than its factorization.

1223300140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61165016 (or 61165014 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1223300140 is about 34975.7078555960. The cubic root of 1223300140 is about 1069.4923320313.

Adding to 1223300140 its reverse (410033221), we get a palindrome (1633333361).

The spelling of 1223300140 in words is "one billion, two hundred twenty-three million, three hundred thousand, one hundred forty".

Divisors: 1 2 4 5 10 20 61165007 122330014 244660028 305825035 611650070 1223300140